Influent and effluent greywater quality in a long-term evaluation of a constructed wetland in Norway

The dataset presented here consists of raw data on the quality of influent greywater generated from residential buildings (100 PE) and the effluent quality of greywater after treatment using a constructed wetland that was built in 2001. A total of 15 samples of influent and effluent samples were taken between February 2023 and Jan 2024, in different months to assess seasonal variations. This 2023-2024 data was compared with the few existing effluent quality data from 2001-2014. The analyzed parameters include organic matter (e.g. TSS, BOD, COD, TOC), total nitrogen, total phosphorus, salt, and microorganisms (E. coli, enterococci, Clostridium perfringens, Legionella spp, Pseudomonas aeruginosa, and Campylobacter). Supporting parameters e.g. turbidity, pH, and conductivity are also included in the dataset.

Files
1. Study_Description: This file includes the summary of the research study, data collection and the standard analytical methods used for analyzing different parameters.
2. Greywater_quality: The influent and effluent concentrations of all parameters analyzed during all sampling events including the previous effluent data from 2001-2014.